Features:1. Aluminum alloy panel of indoor unit, fashionable and luxury2. Little rain and oxidation-proof for the durable aluminum alloy outdoor unit.3. 7" color TFT LCD without radiation, low power consumption and high definition4. IR Camera with Night Vision5. The camera could be turned up / down / left / right to get clearer image6. Electric lock-control function7. Handfree intercom8. Mute indoor intercom function9. Monitoring the outside of the door10. 16 kinds of door bell rings11. Volume, brightness and contrast adjustable12. Easy installation by yourself with adapter and cable we provide in this kit